For the brave 4000 owners, I just noticed that Epson UK has posted firmware for the 4800 here: http://esupport.epson-europe.com/FileDownload.aspx?lng=en- GB&ID=23927&data=7D3D3DF1BB158B5EEFFE88F3C45EC525330E6C29D3037DEB5DA730EE 0335748A I have no idea whether it would work but perhaps this would allow one access to all 8 inks on a 4000 or to upgrade a 4000 to the 4800. Anyway, fyi.
Message
Epson 4800 firmware
2005-07-02 by Steve Kale